Kolkata Metropolitan Area (KMA), also known as The Calcutta Metropolitan Area and Kolkata Metropolitan Region (KMR) is the urban agglomeration of the city of Kolkata in the Indian state of West Bengal. It is the third largest Metropolitan area in India next to Delhi and Mumbai.

It consists of many cities and towns around the city of Kolkata.The Kolkata Metropolitan Development Authority takes care of this region and this region is developing very fast with new technologies, buildings, infrastructures, parks, sports club, Malls, riverside region developments, etc.

According to the 2011 census data, the total population of KMA is 14,112,536. KMDA report states the total area is 1886.67 km², making the population density 7,480 per km².Which makes Kolkata India's highest population density among metropolitan area . Almost twice than Mumbai.